Chamber utensil



No. 25,592. PATENTED SEPT. 27, 1859.

. J. 0. STODDARD.

CHAMBER UTENSIL.

Wax

UNITED STATES PATENT OFFICE.

J. C. STODDARD, OF \VORCESTER, MASSACHUSETTS.

CHAMBER UTENSIL.

Specification of Letters Patent No. 25,592, dated September 2'7, 1859.

T 0 all whom it may concern:

Be it known that I, J. C. STODDARD, of Torcester, in the county of IVorcester and v State of Massachusetts, have invented a new and Improved Chamber Vessel; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the annexed drawings, making a part of this specification, in which Figure 1, represents a vertical central section of a chamber vessel constructed accord ing to my improvements, and Fig. 2, is an iiwerted plan of the cover of one of my chamber vessels.

Similar letters of reference indicate corresponding parts in the two figures.

The object of this invention is to construct the vessel in such a manner that the cover closes down air-tight and without any noise on the vessel, and the invention consists in arranging on the lower face of the cover a projecting flange which serves to retain an elastic ring of india rubber, guttapercha or any other similar substance, which is cut out so that its central opening is considerably smaller than the circumference of the flange so that one portion of the same when it is sprung over the flange closes up tight with the flange and its other part lays flat on the under surface of the cover, so that the latter when placed on the vessel, closes down airtight and without any noise.

To enable those skilled in the art to fully understand, use and construct my invention I will proceed to describe it.

A, is a vessel constructed of earthenware, tin or any other suitable material and of the customary form of vessels of this class, being provided with a handle B, in order to carry the same from place to place, and C, is its cover which fits over the upper edge of the vessel by means of a projecting flange a, the circumference of said flange being considerably smaller than the inside circumference of the upper part of the vessel, so that room enough is left for the ring I). This ring is made of an elastic substance such as india-rubber or gutta percha, and its central opening is cut out considerably smaller than the circumference of the flange so that it is necessary to spring it open to a certain extent in order to place it over the flange on the cover; and this ring is wide enough that the same when placed on the under side of the cover extends up on the flange (1-, and that it nearly covers the flat surface a, of the cover as clearly represented in Fig. 1, and in order to secure this ring. more firmly to the cove I apply to it some suitable cement. By this means I am enabled to produce a vessel, the cover ofwhich not only closes down perfectly tight when placed on the same, but which also is so arranged that the cover can be placed on the same perfectly noiseless as the same comes in contact with the vessel itself only by the medium of the ring 6.

Having thus described my invention I claim as new and desire to secure by Letters Patent as an improved article of manufacture A chamber vessel provided with a flange (a) (c) and elastic ring (6) made as herein shown and described, so as to form a tight joint and also prevent noise, as set forth.

J. C. STODDARD. lVitnesses W. IV. RICE, C. JILLsoN. 

